Ments



M. F. BROGAN.

WELT BEATING MACHlNE. APPLICATION FILED JULY28,19I7.

1,306,656. Patented Tum 10, 1919.

ssHEETs-sHEET I.

M. F. BROGAN.

WELT BEATING MACHINE.

ARPLICATI'ON FILED JULY 28. 1912.

1 ,306, 656 Patented June 10, 1919.

3 SHEETS-SHEET 2- M. F. BHOGAN.

WELT BEATING MACHINE.

APPLICATION FILED JULY 28.1917.

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Patented June 10, 1919.

UNITED STATES PATENT OFFICE.

MICHAEL E. BROGAN, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR, BY MESNEASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEWJERSEY,

A CORPORATION OF NEW JERSEY.

WELT-BEATING MACHINE.

Specification of Letters Patent. Patented J 10, 1919,

Application filed July 28, 1917. Serial No. 183,353.

To all whom it may concern 7 Be it known that I, MIoI-IAEL F. BROGAN, acitizen of the United States, residing at Lawrence, in the county ofEssex and State of Massachusetts, have invented certain new and usefulImprovements in Welt-Beating Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it 'appertains tomake and use the same.

This invention relates to welt beating machines for beating out the weltof alasted shoe, and more particularly to welt beating machines of theclass provided with welt slashing mechanism for cutting slashes in thewelt to enable it more readily to be beaten out flat in the plane of theinsole of the shoe.

The objects of the present invention are to improve the construction,operation and efliciency of welt beating machines of the above class,and to provide such machines with a welt slashing mechanism having asimplified construction and an improved mode of operation as comparedwith prior machines.

In this class of machines the welt slashing mechanism is normally out ofoperation, and is arranged to be thrown into and out of operation duringthe continued operation of the machine by mechanism under control of theoperator, such as a treadle. The welt slashing mechanism is ordinarilythrown into operation only when operating about the toe of the shoewhere the welt is warped or thickened by reason of the strain exertedupon its outer margin in attaching the same about the convex curve ofthe toe. It is practically always necessary to make several slashes inthe welt about the toe to enable the welt to be beaten out properly. Inprior machines the welt slashing mechanism is thrown into operation bythe depression of a treadle, and is thrown out of operation im mediatelyupon release of the treadle. In these machines in making the number ofslashes required in the welt about the toe of a shoe to enable the weltto be beaten out properly it is necessary 1 for the operator to keep hisfoot on the treadle until the required number of slashes are made, andthen to release the treadle.

One feature of the present invention contemplates the provision ofmechanism operating automatically after the welt slashing mechanism hasbeen thrown into operation to cause the welt slashing mechanism to cutat least a predetermined number of slashes in the welt before itis'thrown out ofoperation. The above feature is of great advantage,since it enables the required number of slashes to be made in the weltwithout fur ther attention on the part of the operator after the treadleis actuated to throw the welt slashing mechanism into operation, andinsures the making of at least the numberof slashes required forsatisfactory results without the exercise of any care or judgment by theoperator. i

In the usual machines of this class now in commercial use the welt.slashing knife is constructed and arrangedto move during its cuttingstroke in a straight, line in the plane of the welt from theouter'toward the inner edge of the welt. With this construction andarrangement of the knife the operating movement of the knife tends tocrowd the outer margin of the welt'inwardly toward the shoe and theresult often is that the knife does not make a clean cut of the desiredlength in the welt. This is particularly true when the knife becomesslightly dulled.

Other features of the present invention relate to improvements in theconstruction, arrangement and mode of operation of-the welt slashingknife. tures will obviate the above disadvantage in the mode ofoperation of the knife in prior machines of the usual type. a

The invention also comprises certain other novel and improvedconstructions, arrangements and combinations of parts hereinafterdescribed and particularly pointed out in the claims, the advantages ofwhich will be readily appreciated by those skilled in the art.

with certain of the parts broken away; Fig,

2 is a view in side elevation ofa portion ofthe machine illustratingvparticularly the beating hammer and slashing. knife mechanisms; Fig. 3'is a View similar to Fig; 2,

The features of the invention will be read-.

Certain of these feaillustrating certain of the parts of the knifemechanism in different positions, with cer tain of the parts shown insection; Fig. 4 is a detail sectional view taken substantially on theline 44 of Fig. 2; Fig. 5 is a plan View of the forward portion of themachine below the hammer lever, and illustrating particularly theslashing knife mechanism; Fig. 6 is a detail view in front elevation,with certain parts in section illustrating the knife mechanism; Fig. 7is a view similar to Fig. 6, illustrating certain of the parts indifferent positions; and Fig. 8 is a detail sectional View takensubstantially on the line 88 of Fig. 5.

The general organization of the machine illustrated in the drawings, andthe con struction and arrangement of the parts of the welt beatingmechanism are substantially the same as in the machine illustrated anddescribed in the patent to Hadaway No. 875,171, dated December 31, 1907.The machine comprises a welt support 2, shaped at its forward end toenter between the upper and welt of a lasted shoe, and a vibratoryhammer 4: arranged to engage and beat out the welt as it is fed acrossthe upper surface of the welt support. The welt support is adjustablysecured .to a forwardly projecting arm 6 on the frame of the machine.The hammer 4 is secured to the lower end of a hammer rod or plunger 8slidably mounted in guides in the forward end of a hammer lever 10, andacted upon by a coiled spring (not shown) surrounding the rod within achamber in the hammer lever and acting to hold the rod yieldingly in itslower limiting position in the hammer lever, and allowing the hammer toyield when it engages the welt. The hammer lever is fixed to a shaft 12mounted in suitable bearings in the frame of the machine. The hammerlever is rapidly oscillated by means of an eccentric or crank 14 formedon the main shaft of the machine and operating within a two-part bearingblock 18 mounted in guides in the bifurcated rear end of the hammerlever. The main shaft is mounted in suitable bearings in the frame ofthe machine and carries a driving pulley 20. The construction thus fardescribed is substantially the same as that of the machine illustratedand described in the Hadaway patent referred to above. I

The welt slashing knife of the machine is indicated at 22. The knife isformed upon the forward end of a knife bar clamped in a carrier 24pivoted by means of a shaft 26 upon a support 28. The rear end of theknife bar is dovetailed in cross-section, and fits in a correspondingdove-tailed. slot formed in the carrier 24:. The knife bar is clamped inthe carrier by means of a clamping block 30 fitting in a slot in thecarrier and arranged to engage the edge of the knife bar and a clampingscrew 32 passing through an opening in the carrier and threaded at itsend into the clamping block 30. The knife is formed with a curvedcutting edge eXtending in a direction from one edge of the knife bartoward the other and from the outer side of the knife bar toward theinner side thereof. The knife bar is mounted in the carrier 24: so thatthe knife formed at the forward end thereof projects over the uppersurface of the welt support in position to engage the welt as the weltis fed across the upper surface of the welt support. To impart'a cuttingstroke to the knife, the carrier 24 is swung from the position shown inFig. 6 to that shown in Fig. 7. As illustrated in the drawing, the pivotof the carrier 2a is substantially perpendicular to a vertical planethrough the line of feed. As the knife is swung from the position shownin Fig. 6 to that shown in Fig. 7 it will engage the welt and cut aslash therein extending obliquely to the plane of the welt partiallythrough the welt from its upper or flesh side toward its lower or grainside. During its cutting stroke the knife moves in adirection transverseto the plane of the welt and in the general direction of the length ofthe welt and has no movement in a direction widthwise of the welt. Theknife therefore will have no tendency to crowd the outer portion of thewelt inwardly toward the shoe, but will make a clean slash of thedesired length in the welt. The slashes made by the knife will thereforee. tend substantially uniform distances from the outer toward the inneredge of the welt, and will teri'uinate at substantially uniformdistances from the lower face of the welt which rests upon the weltsupport.

To enable the knife to be adjusted angularly in a plane substantiallyparallel with the plane of the welt, the support 28 is mounted upon aslide 34: having a cylindrical boss 36 projecting upwardly therefrom andengaging in a corresponding cylindrical recess in the support 28, asshown clearly in Figs. 3 and 5. This manner of mounting the support 28on the slide 34 allows the support to be swung about the center of theboss 36 as an axis. The support 28 is held in adjusted position on theslide 34 by means of holding screws l0 and 41 passing through slots inthe support 28 and threaded into the slide 34. By the adjustment of theknife angularly in a plane substantially parallel with the plane of thewelt, the angular positions of the slashes made in the welt relative tothe length of the welt may be varied. The slide 34: is dovetailed incross-section, and is mounted in guides in a support 42 to slide in adirection substantially parallel with the line of feed. This manner ofmounting the slide 34: on the support 12 enables the knife to beadjusted laterally to locate the knife properly relatively to the weltsupport and the welt beating hammer. The slide 34 may be adjusted laterally relatively to the support 42 by means of an adjusting nut 44threaded upon a bolt or stud 46 secured at one end inthe support 42, thenut being formed with a peripheral groove in which engages a downwardlyextending arm 48 on the slide 34. The knife also may be adjustedangularly in a plane substantially perpendicular to the plane of thewelt to vary the angle of the slashes relatively to the plane of thewelt. To enable the knife to be adjusted in this plane, the support 42is formed with a substantially semi-cylindrical bearing boss orprojection 50 which fits into a correspondingly shaped recess inthe'shank of the welt support 2. This construction enables the support42 to be tipped about the axis of the cylindrical boss 50. The support42 may be adjusted about the axis of the bearing boss 50, by means of anadjusting screw 52 threaded into the support 42 and engaging the shankof the welt support at its lower end, as shown in Fig. 3. The support 42is securely held in position in the machine my means of an eye-bolt 54pivoted upon a stud 56 mounted in the support 42 and extendingdownwardly through a slot in the shank of the welt support and throughthe arm 6 on the frame, and a nut 57 threaded upon the lower end of thebolt and engaging a washer 58 interposed between the nut and the arm 6.The eye-bolt and nut serve not only to secure the support 42 in place,but also to hold the-Welt support in adjusted position upon the arm 6.

In the present machine the carrier 24 is swung from the position shownin Fig. 6 to that shown in Fig. 7 to impart a cutting stroke to theknife from the movement of the hammer lever. The lmife is normally heldin retracted or inoperative position by means of a plunger 59 mounted ina suitable guide in the support 28, and arranged to engage the carrier24,. as shown in Figs. 6 and 7. The plunger is acted upon by a coiledspring 60 surrounding the rod which forms the shank of the plunger,andinterposed between the head of the plunger and a cap 62 threaded onthe end of aprojection or boss 64 formed on the support 28. The plunger58 is normally held by the coiled spring 60 in advanced position in itsguide bore in the support 28 and normallyv maintains the carrier 24 inthe position shown in Fig. 6. The movement of the carrier 24 under theaction of the plunger is limited by the engagement of. an abutment 66'formed on the carrier with the abutment face 68 on the support 28. Thecarrier24 is swung from the position shown in Fig. 6 to that shown inFig. 7 to impart a cutting stroke to the welt slashing knife by means ofa lever 7 O pivoted upon a stud 72 project ing from a bracket 73 securedto the hammer lever. The lever is arranged to engage at its forward enda contact plate 74 secured by a screw 76 to a projection 78 on thecarrier 24. The rear end of the lever 7 0*is acted upon by a compressionspring 80 interposed between the bracket'7 3 and the rear end of thelever 70 which normally maintains the forward'end of the lever 70 in itsuppermost position in engagement forward end of the lever 7 O to swingdownwardly relatively to the hammer lever into engagement with thecontact plate 74, and swing the carrier 24 from the position shown inFig. 6 to that shown in Fig. 7. The abutment 84 consists of a slidemounted to slide vertically in suitable guides in an upright 86 on theframe. The downward movement of the abutment 84 is limited by an offsetor lateral projection 88 at the upper end thereof, which is arranged toengage the upper end of the upright 86. The abutment is illustrated inits lowermost position in Fig. 2. When the abutment is lifted from theposition illustrated in Fig. 2 to that illustrated in Fig. 3, its upperend engages the rear end of the lever 70 during the downward movement ofthe forward end of the hammer lever, and causes the lever 70 to swingabout the shaft 72 relatively to the hammer lever from the positionshown in Fig. 2 into the position shown in Fig. 3. During this movementof the lever 70 relatively to the hammer lever the carrier 24 is swungabout its pivot 26 to impart a slash ing stroke to the welt slashingknife.

The abutment 84 is lifted from the position shown in Fig. 2 to thatshown in Fig. 3 .by means of a cam wheel 90 secured to a shaft, 92mounted in bearings formed respectively in a plate 94 secured to theframe held stationary substantially in the position shown in Fig. 2,with the lower end of the abutment 84 located between two of theseprojections 96. The cam wheel is held 1n this position by means of aroll 98 mounted on the upper end of a slide 100, and arranged to engagein a recess 102 1n a d sk 104 fixed to the shaft 92 to hold the disk andthe shaft from rotation. The slide 100 roll 98 from the recess 102 topermit the rotation of the cam wheel 90. The disk 104 is formed with asubstantially circular periphery, except at the point where the recess102 is located.

Mechanism is provided for rotating the cam wheel 90 which is held out ofoperation as long as the slide 100 is in its upper position and isthrown into operation by the depression of the slide.

The mechanism for rotating the cam wheel 90 comprises a ratchet wheel114 fixed to the shaft 92, and a pawl 116 mounted on a pawl carrier 118loosely pivoted on the shaft 92. The pawl 116 is pivoted upon a shaft120 mounted in the pawl carrier 118, and is acted upon by a compressionspring 122 interposed between an arm 124 on the rear end of the pawl andthe pawl carrier, which tends to throw the forward end of the pawl intoengagement with the ratchet wheel 114. The pawl carrier 118 isoscillated continuously during the operation of the machine by mechanismcomprising an arm 126 secured at its rear end to the hammer lever shaft12, and provided at its forward end with a slot 128 through which theshaft 92 passes. The arm 126 is connected with the pawl carrier 118 bymeans of a block 130 pivoted on a pin 132 secured in the pawl carrier,and arranged between suitable guides formed by the opposite faces of aslot in the arm 126, as shown clearly in Fig. 8. Oscillating movementsare imparted to the arm 126 .by the rocking movement of the shaft 12caused by theoscillation of the hammer lever 10. The oscillation of thearm 126 through the connection between said arm and the pawl carrier 118will impart oscillating movements to the pawl carrier. When the actingend of the pawl 116 is engaged with the ratchet wheel 114, the ratchetwheel will be rotated step by step by the action of the pawl. The partsare preferably constructed and arranged so that the pawl oscillatesidly.

the ratchet wheel will be advanced one tooth during each oscillation ofthe pawl carrier. Backward movement of a ratchet wheel 1s preventedduring the retraction of the pawl by means of a retaining pawl 134pivoted upon a stud 136 mounted on the plate 94, the pawl being formedwith hook-shaped end arranged to engage the teeth on the ratchet wheel.The acting end of the retaining pawl is held in engagement with theteeth on the ratchet wheel by means of a tension spring 138 attached atone end to an arm 140 on the pawl, and at its other to the plate 94.

The pawl 116 is normally held out of engagement with the ratchetwheel'114 so that To this end the rear end of the pawl carries a roll142 ar ranged to be engaged by a curved contact face 144 formed on theslide 100. The contact face 144 is preferably struck upon an are havingits center substantially in the axis of'the shaft 92. The parts areconstructed and arranged so that when the slide 100 is in its uppermostposition with the roll 98 engaged in the recess 102, the roll 142 on thepawl 116 will be engaged by the contact face 144 on the slide, and thepawl will be held out of engagement with the ratchet wheel 114.

During the normal operation of the machine, the treadle of the machineis released, and the slide 100 is in its uppermost position with theroll v98 engaged in the recess 102 in the disk 104, thereby holding thedisk, the shaft 92, and the cam wheel 90, stationary in a position suchthat the abutment 84 is in its lowermost position between two of theprojections 96 on the cam wheel, and the pawl 116 is held out ofengagement with the ratchet wheel 114 by theengagement of the contactface 144 on the slide 100 with the roll 142. The welt slashing mechanismis thus held out of operation as long as the treadle is released. In theoperation of beating out the welt of a shoe as the point is reached inthe shoe, such as the toe, at which it is desirable to cut a number ofslashes in the welt, the operator depresses the treadle rod 112. Theslide 100 is thus depressed to disengage the roll 98 from the recess 102and to carry the contact face 144 on the slide out of engagement withthe roll 142 on the pawl 116, allowing the pawl to be actuated by thespring 122 to carry the acting end of the pawl into engagement with theratchet wheel 114. The ratchet wheel is then rotated step by step by theoscillatory movements of the pawl 116. By the actuation of the ratchetwheel the cam wheel 90 is rotated in the direction of the arrow, Fig. 3,carrying the projections 96 on said wheel successively into engagementwith the lower end. of the abutment 84 to lift said abutment atintervals into the position shown in Fig. 3, so that it will engage therear end of the lever and cause said lever to actuate the carrier 24 toadvance the welt slashing knife. The welt slashing knife will beactuated to cut one slash in the welt each time that the abutment 84 islifted into its operating position. The initial rotary movement of theratchet wheel 114-rotates the disk 104 to carry the recess 102 in thedisk out of position to be entered by the roll 98. After depressing thetreadle to throw the welt slashing mechanism into operation, theoperator releases the treadle, allowing the slide 100 to be elevated bythe action of the spring 106, thereby carrying the roll 98 intoengagement with the circular periphery of the disk 104. The parts areconstructed and arranged so that when the roll 98 is engaged with thecircular periphery of the disk 104, the slide 100 Will be held down farenough to prevent the engagement of the contact face 144 on the slidewith the roll 142. The pawl 116 will therefore continue to engage theratchet wheel 114 until the disk 104, the shaft 92 and the cam wheel 90have made a complete rotation. As these parts complete a full rotationbringing the recess 102 to its initial position the slide 100 iselevated by the spring 106 thereby engaging the roll 98 in the recessand the pawl 116 is thrown out of engagement with the ratchet wheel 114by the engagement of the contact face 144 in the slide with the roll142. Therefore, after the treadle is depressed to throw the weltslashing mechanism into operation, and is then released, the cam wheel90 will make a complete rotation before it again comes to rest. Afterthe welt slashing mechanism is thrown into operation by the operator,the welt slashing knife will be actuated to make at least apredetermined number of slashes at regular intervals in the welt andsaid mechanism is then thrown out of operation automatically. The numberof slashes made in the welt during the period of operation of the weltslashing mechanism is determined by the number of projections on the camwheel 90, which obviously may be varied as desired. In the illustratedconstruction the cam wheel is formed with four projections and the weltslashing knife will be actuated to out four slashes in the welt. This isusually the maximum number required to be made at the toe of a shoe inorder to enable the welt to be beaten out in a reliable and satisfactorymanner. The ratchet wheel 114 is advanced one tooth during eachoscillation of the welt beating hammer. In the illustrated construction,the ratchet wheel is formed with twelve teeth, so that during the periodof operation of the slashing mechanism the welt slashing knife makes oneslash in the welt for each three blows delivered by the hammer on the,welt.- The intervals between the slashing strokes of mer comprises twobeatersindicated, respectively, at 146 and- 148. The beater 146 isprovided with a sleeved shank which receives and is secured to thelower, end of the & Hadaway,

hammer rod 8. r The heater 148 is provided. 7

with a pivot stud 150' which isengaged in a bearing in a projection .152on the beater 146, a nut '154-threaded upon the stud serving to hold thebeater 148 in place relatively to the beater 146. ,The heater 148 isnor. mally held in closed position relatively to. the beater 146 bymeans of-a coiled spring 156 having one end engaged in a recess in thebeater 146 and its other end engaged in a recess in an arm 158 formed onthe beater, 148. When the beater 148 is in closed position relatively tothe beater 146, the for-- ward portions of the lower or work-engag ingsurfaces ofthe beaters form a substan: tially unrecessed face forengagement. with the welt. Thebeater 148, however, whenin closedposition, lies in the path of the welt I slashing knife, and mechanismis provided for swinging saidbeater about its pivot stud 150 out of thepath ofthe slashing knife as the knife executes its welt slashingstroke- To this end an arm 160 is secured to the-forward end of a rockshaft-162 mounted in a bearing in the bracket 7 3 secured to the hammerlever. The arm 160 is formed with a, forwardly extending projection 164arranged to engage the projection 166 on the V a rear end of the beater148. During the ad: vancing stroke of the knife the projection 164 onthe arm 160 engages theprojection 166 on the beater 148 and: swings the-.beater outwardly about its pivot stud out of the path of the-knife.Thenecessary move: ment is imparted to the arm to-thus ac 'tuate thebeater 148 by the lever 70 which is formed with a lateral extension 168,arranged to engage the upper SlClQOf the projection 170 on the arm 160,as shown in Fig.

4. Through the mechanism described the V what is claimed is:

1. A welt beating machine, having in combination, a welt support, weltbeating;

means, welt slashing means, and mechanism acting automatically after thewelt slashing means is thrown intooperation to cause the same to out atleast a predetermined number ofslashes in the welt before it is thrownout of operation.

2. A welt beating machine, having in combination a welt support, weltbeating means, welt slashing means, and mechanism for throwing the weltslashing means into operation to slash the welt and for throwing thewelt slashing means out of operation automatically after a predeterminednumber of slashes have been cut in the welt.

3 A welt beating machine, having in combination, a welt support, weltbeating means, welt slashing means normally out of operation, mechanismunder control of the operator for throwing the welt slashing means intooperation, and automatically acting mechanism for causing the weltslashing means to cut at least a predetermined number of slashes in thewelt, and for then throwing the welt slashing means out of'operation.

4:. A welt beating machine, having. in combination, a welt support, weltbeating means, welt slashing means normally out of operation, mechanismunder control of the operator for throwing the welt slashing means intooperation, and mechanism for throwing the welt slashing means out ofoperation automatically after a predetermined: number of slashes havebeen cut in thewelt.

5. A welt beating machine, having in combination, a welt support, a weltbeater, welt slashingmeans, mechanism for actuating the welt slashingmeans to cause the same to cut slashes in the welt at regular intervalsduring which the beater delivers a predetermined number of blows on thewelt, and means for throwing said; actuating mechanism into operationand for throwing the same out of operation automatically after apredetermined number of slashes have been cut in the welt.

6. A welt beating machine, having in combination, a welt support, weltbeating means, and a reciprocatory pivoted welt slashing knife havingits edge extending transversely to its plane of movement, and means forswinging the knife to slash the welt.

7. A welt beating machine, having in combination, a welt support, weltbeating means, and a reciprocating welt slashing knife pivoted to swingduring its operative movement on an axis transverse to the direction offeed of the welt.

8. A welt beating machine, having in combination, a welt support, weltbeating means, and a reciprocating welt slashing knife having anoperative movement in a direction transverse to the plane of the welt.

9. A welt beating machine, having in combination, a welt support, a weltbeating hammer, a hammer lever, a welt slashing knife, and means foractuating the knife from the hammer lever.

10. A welt beating machine, having in combination, a welt support, awelt beating hammer, a hammer lever, a welt slashing combination, a weltsupport, welt beating means, a welt slashing knife, and means wherebythe knife may be adjusted angularly to adjust the angle of theslashesmade by the knife in twodifferentv planes.

1%. A welt beating machine, havingyin combination, a welt support, weltbeating means, a welt slashing knife, and means whereby the knife may beadjusted angu-, larly in two different planes and laterally.

15. A welt beating machine, having in combination, a welt support, awelt slashing kni fe, having an operative movement in an arcuate path, abeater normally engaging the welt at a point in the patlr of the knife,and means for mounting the beater to. permit the same to be moved out ofthe path of the knife.

16. A welt beating machine, having in combination, a welt support, awelt slashing knife, a welt beating hammer normally engaging the welt ata point in the path of the knife, a hammer lever, and means for mowv ingthe hammer out of the path of the knife from the hammer lever.

17. A welt beating machine having, in combination, a welt support, weltbeating means, and areciprocating welt slashing knife having anoperative movement in a direction transverse to the plane of the. weltand in a plane substantially perpendicular to the plane of the welt andparallel with the normal direction of feed.

18. A welt beating machine having, in combination, a Welt support, weltheating means, and a reciprocating welt slashing knife arranged to cuttransverse slashes in the welt oblique to the plane thereof, and havingan operative movement in a direction transverse to the plane of thewelt.

19. A welt beating machine having, in combination, a welt support, weltbeating means, a welt slashing knife and mechanism for actuating theknife to cause the same to cut slashes in the welt at regular intervalsduring which the beating means delivers a predetermined number of blowson the welt comprising a cam wheel, means for rotating the cam wheel intimed relation to the beating means, and a device actuated at regularintervals by the cam' wheel and acting when actuated by said wheel tothrow the welt slashing knife into operation.

20. A welt beating machine having, in combination, a welt support, awelt beater, a welt slashing knife, mechanism for actuating the knife tocause the same to cut slashes in the Welt at regular intervals duringwhich the beater delivers a predeterthe operator for throwing therotating means into operation, and mechanism acting automatically tothrow the rotating means out of operation when the cam wheel hasdescribed a predetermined rotary movement.

21. A welt beating machine having, in combination, a welt support, awelt beating hammer, a hammer lever, a welt slashing knife, a movablecarrier therefor, a knife actuating lever pivoted on the hammer lever,an abutment for engaging the knife actuating lever to cause the same toswing during the movements of the ham mer lever to actuate the knife,and means for moving the abutment into and out of operative positionwith relation to the knife actuating lever.

MICHAEL F. BROGAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

